Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3ZIM callsign genealogy
Currently held by Ziminski Jr, Gregory P
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W3ZIM's current licensee, walking backwards.
- Ziminski Jr, Gregory PPAgranted 2023-03-08cancelled 2023-12-29
Successor callsigns
Callsigns held now by people who previously held W3ZIM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3ZIM, oldest first.
- MC CUNE, BLAINE E PA2000-08-08 → cancelled 2012-10-10
- Ziminski Jr, Gregory P PA2023-12-29 active